Washinqton



(MO'del.)

LC TAYLOR. Nail Plate Feeder.

N6. 236,966. Patented Jam-25,1681.

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IIJETB'IS, PNOTB-LITNOGRAPHEI. WASHINGTON. D C.

(modele 5 Y f sheets-'sneeze B-.4e. TAYLoR.- i NJa'i-I Plate Feeder".-NQ.' 236,956; Patented 1an. 25,1881.

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i UNrTD A STATES PATENT Ormea.

`ELBERT O. TAYLOR, OF KNOXVILLE," TENNESSEE, ASSIGNOR OF ONE-HALF TO WM.`W. WOODRUFF, OF SAME PLACE.

vNAIL-PLATE FEEDER.'

SPECIFICATION forming part of ,Letters Patent No. 236,966, dated January25, 1881. Application filed April 27, 1880. (Model.)

To all whom it mag/concern.-

Be it knownthat I, ELBERT C. TAYLOR, of Knoxville, in the county of Knoxand State of Tennessee, have invented certain new and usefulImprovements in Nail-Plate Feeders, of which the following is aspecification.

My invention relates to improvements in nail machineryy of the kinddesigned for sup- A plying sheets or plates of lnetal to the cutterswhich sever the nails therefrom, and particularly to that class of suchmachinery by which the plates are intermittingly advanced and turnedtobring uppermostlirst one side andthen lthe other over and upon anvilsor tables upon which the plates are supported whilevertically-reciprocating knives or cutters operate to sever the nailsfrom the plate ends by oblique cuts. l

My object, mainly, is to provide means for uninterruptedly supplying andfeeding forward the plates, one length after another, to the knife orcutter, which is continuously operated.

My object, lfurther, is to provide improved mechanism for operating thenaiLpIate-feeding de vices, and, generally, to improve the.

machine in details or minor features.

The subject-matter claimed will-hereinafter be designated, after iirstdescribing my improvements in detail.

In the accompanying drawings, in which the anvil or plate-support andthe cutter are omitted, all my improvements are represented as embodiedin the best way now .known to me. Obviously some ot the essentialfeatures of my invention may be used without others ot' the devicesyandthe details of construction and arrangement may be modiiied somewhat.

Figure 1 is a side elevation ot' the machine with the main or drivingshaft in section, and parts" not essential to an understanding of thisinvention omitted. Fig. 2 is a transverse upright section through thedriving-shaft end of the machine, on the line 2 2 of Fig. 1, but withsome of the parts shown in different positions. Fig. 2 isa transversesection on the lines 29J 2sh ot' Figs. 1 and 2. Fig. 3 is a sideelevation of" devices intermediate .the driving-shaft andnail-plate-handling mechanism, for reversing 'the motion or changingstroke. Fig. 4`is"`a` view, partly in side elevation and partly inlongitudinal` section, on the line 44 of Fig. 15, of thenail-plate-handling mechanism, its supports, andimmediate connections.Fig. 5 is a vertical transverse section on the line 5 5 of 55 Fig.4.Fig. 6 is an elevation as seen from the side opposite that representedby Fig. 4. Fig. 7 is a side' elevation of the oscillating nail-'plate-carrying hollow cylinder or inside rocking tube, detached fromits housing or outer 6o cylinder. Fig'. 8 is a view, partly in plan andpartly in longitudinal and horizontal section, through thenail-plate-handling mechanism, on the line 8 8 of Fig. 9. Fig. 9 isavertical longitudinal section on the lines 9 9 of Figs. 8 65 and 14.Figs. 10, 11,12,and 13 are transverse sections, showing some parts inend elevation, on th'e lines 10 10, 11 11, 12 12, and 13 13.respectively', ot' Figs. 4 and S. Fig. 14 is a view, partly in endelevation and partly in vertical 7o section, in two planes, as indicatedby the line 14 14 of Fig. 4. Fig. 15 is a plan view, showing parts whichsupport the nail-plate-handling mechanism.

lhe nail-platehandling mechanism is adjustably and detachably mounted ona frame or table, A, supported above and at the side of, or projecting'laterally from, a standard or upright post, B. The table is adjustableupon or relatively to the post, so that the nail-plates 8o may be causedto travel properly to a suitable anvil and cutter', the positions ot'which reliatively to and operations in connection with myl improvementswill readily be understood farther'on. The post B is suitably fastened85 to a base-plate o'r to a floor by feet or legs b four in number inthis instance-above and from between which it projects. The post isvertically slotted for an adjustable angle-piece or block, B', which isguided by the slot as it 9o is moved up or down and held againstvibration. A screw, b', passing through the top of the post and workingin' a tap in the upper or block part, B, ot' this angle-piece, serves tohold it at any desired elevation, while a cap, B2, fastened by the screwb2 to the block, preven-t's' the latter from moving inward or out oftheg-uideway in the post at one side. l The downwardly-projecting armorshank part B3 this 'angle-piece bears,and during adjustroo ment worksup and down, against the inside ot' the post or the side opposite thatagainst which the cap B2 bears. Thus, while the angle-block may bedetached readily its accidentaldisplacementisprevented. Astlieinainstrain ou the block and its shank is downward the screw b' serves tohold it at the desired elevation, and this screw is aided in its work bythe pressure of the cap against the post when screwed tightly in place.

To adjust the niain table A vertically independently of the adjustmentot' the block B', the table is connected with said block by way of aplate, A', and slotted dowii-haiigers cr bracket-arms A2 A2. Ascrew-bolt, a, passes through the slots of these brackets into taps inthe plate, and serves, when the parts are properly' adjusted and thescrews tightened, to hold the table at the height desired. The plateA'is pivoted to the block B'at a', and is provided with a curved slotand a setscrew, a2, passing through the slot into the block. In this waythe table may be rocked to and fro slightly, to level it and adjust itrelatively to the anvil and cutter. A rounded shoulder at the base ofthe adjustable plate bears in a seat at the angle or junction of theblock B' and its shank B3, thus supporting the pivot against end-thrustof the plate.

To adjust the iiail-plate-haiidling mechanism laterally, it is mountedon the main snpport or table A, by way of an upper or supplementarytable, C, provided with curved guideilanges or screw attached shoulderedsegmental plates C' C', working in a guideway formed bya transverse slotin the table A, the front and rear walls of which slot are of curvaturecorresponding to that of said plates. A threaded rod or long bolt,C2,liavinga polygonal head or crank, so that it may be turned by a wrenchor by hand, works through a nut or threaded stud, c, attached to theunder side of the supplementary support U. This adjustiiig-rod C2 turnsin, but has no eiidwise movement through, a sleeve-bearing, c', fast tothe main table A.

It will readily be understood that by tnriiing the adjiistiiig-rod tliesupplementary table and parts supported by it will be moved laterally,the movement imparted being a coinpound vibratory and bodily sidewisemovement, the motion sidewise being greater at the heel end of the tablethan at the front end.

Before describing the nail-plate-handling mechanism or the devices forfeeding Iand turning the nail-plates, 1 will describe the means which Ideem preferable for operating such mechanism.

A driviiig-sliaft, D, mounted in any proper way in suitable bearings, isprovided with au eccentric, D', to which the ordinary straps orsectional encircling band couples one end of a conuectioii-rod, D, niadein two parts, which are jointed at d. The connecting-rod works, at itsouter or lower end, in suitable guides Vshown as formed hy beveledlapping lips or cleats d on an upright, E. (See Fig. 2".) The jointedend of the connecting-rod moves in a fixed path or straight verticalline iii its guideways at the back of this npriglit or post E, againstwhich it is held by the lips. The post has an elongated slot, d, throughit, in which is guided a vertically-working short stud, d, on theconnecting-rod, upon which stud is pivoted a peculiarly-shaped tappet,d3, of approximately lozenge shape. per or heel end of this tappet iscurved or rounded oi' alike on both sides, while its lower part or pointis wedge-shaped, both sides being inclined from or near the center,where the curvature of its sides ceases, to its extreme end orwedge-like point. A peaked guide block or wedge-like tappet-controllingstud, e, projecting from the post E, is located beneath the tappet andin the vertical plane of its pivot or axis of oscillation and the outersurfaces or faces of the tappet, and its guide stud are iush or in acommon vertical plane. A peculiarlysliaped vibrating double cam or yoke,E', surrounds the tappet d3 and stud e. The camway in this cam-yoke isat bottoni shaped correspondingly, or. nearly so, with the stud, and theupper or main part of this yoke is partly curved and partly inclined, soas to conform to the curved and inclined sides of the tappet. At thejunction of the tappet part and the stud part ot' the cam it isconsiderably contracted in width, asy between the shoulders or points e'e'. A lever-shank or vibrating rod, E", is formed with or rigidlyconnected to the cam-yoke, and a pivot, e", secures the yoke at itsjunction with the shank to the post E.

In operation tlie cam and its shank or lever are oscillated or vibratedvertically about their pivot as the driving-shaft revolves continuouslyin one direction, as will now be explained.

Starting, say, with the parts occupying the position shown in Fig. 2,and in full lines in Fig. 3, at which time tlie connecting-rod D2 is ator about the finish of an inward or upward stroke. the point of thetappet rests against the inclined wall of its cani-guide at the rightside and slightly above the shoulder e', the heel of the ta-ppetis borneupon by the upper right-hand part of' the cam-wall, and the right sideofthe guide-stud or tappet-controlling block e is borne upon or closelyapproached by the right wall of the lower part of the cam. As theconnecting-rod moves outward or downward the tappet strikes at its pointagainst the stud nearts peak, glides downward, and is wedgedin forciblybetween the inclined sides of the Stud and the adjacent wall of the cam,thus rocking the shank or lever E2 to the left and the cam to the rightat its top, so that the parts assume the positions represented by dottedlines in Fig. 3 by the time the outward stroke is completed. Upon thereverse or inward stroke the tappet moves np to a position on theopposite or left The up- IOO IIO

IIS

hand side of the cam-yoke, and is'brought to a short panse with itspoint abovethe left side ot' the block @readyzto be wedged in between itand the left side of the cam-track next it upon the outstroke,=(slx1 ownas completed in Fig. 1,) and so the operation `is repeated as the mainshaft is kept in motion. It should be noticed that there is'a slightpause between thelvibrationsof the cam and its shank or lever in theopposite directions. there is pause long` enough `for the cutter to acton the nail-plate, when advanced, as hereinafter will be explained.

The vibrating shank or lever-arm E2 works between thefeet orlegs f f',by which the slotted post E is supported and firmly secured in position.An extensible orlengthwise adjustable pitman, F, is pivotedorpin-jointed, as at f2, to the end of the arm E2, and at its opposite end`thepitman is similarlyjointed to the lower end of a long vibrating armor lever, F', fulcrumed on the shank ot' the slide-block, as presentlydescribed.

The pitman may be adjusted in length to suit the adjustments oftheslide-block and its shank by means of the slots- Ag g and setscrews orpinch-nuts g' g', connecting its two parts in a well-known way. Thevibrating arm F' is pivoted at g2 to the lower end ot' the shank B3 ofthe adjustable block B', and is slotted or linkshaped at its upper end,G, to engage a rocking block or turning arm, G', secured about a shortfixed stud or pin on a sliding block, G2, traveling, when in operation,to and fro in a guideway or slot, h, at the side of a non-turningcasingor outer hollow cylinder,

H, for the nail-plate-handling mechanism.

An inner oscillating hollow cylinder or rocking tube, H', which has noendwise movement in its casing H, is provided with a curved groove orcamway, h', which is of about halt'- spiral form or extends half-way, ora little more than this, round the tube. This way may either be formedIas a groove between lands, or as shown in Fig. 7, where the way, insteadot' beingcutinto the tube,is between ribs. Astraight groove or way, h2,with which the curved way communicates at one end, is also provided'inthe oscillating tube. Around pin or roller, h3, on the reciprocatingblock G2, travels in the curved way h' as said block is moved back andforth by the operation of the arm F'. A shoulder, g4, on the slidingblock G2, traverses a stra-ight slot, g3, in the non-oscillating case orouter cylinder, as clearly shown in various figures of the drawings.

The supporting-cylinder or outer casing, H, is hinged at or near itsheel or front end to the supplementary table C by .shortdownwardlyprojecting arms or lugs I I, through which, as well as throughbearings I' I', a pivot-pin, I2, passes. The cylinder has sufficientvertical pla-y as it vibrates about its pivot to raise the nail-platefor turning it, as will be understood farther on, and during the variousmovements imparted to the naiLpIate-handling mechanism In this way.

the link G of the lever F' slides either vertically on the block G', orthe block moves endwise in the lever-link without being' cramped. Thislever vibrates in the slot I4 in the main table.

Rernovably attached to the receivin g or heel end of the oscillatinginner cylinder is a iiaring mouth or guide, J, for facilitating theinsertion ot' the strips or n-ail-plates j. This flaring mouth-piecepartially overlaps the end of the inner tube andabuts against an annularshoulder thereon and terminates close to or against the inner end ot theoutside cylinder. The forward or outer end of the outside cylinderterminates at the annular shoulder or abruptly-enlarged part J' of theinner cylinder, and the bearings for this inner cylinder are formed bythe collars or annular enlargements J2 J2 at the opposite ends, asshown. The short end bearings thus provided, as plainly shown in Figs.7, 8, and 9, are preferable to bearings the entire length of the shell,as they may readily b'e kept lubricated and create but little frictionas the inner tube'is oscillated in the outer one, with its camway wallsor ribs free therefrom.

A conducting passage or way for the nailplates is provided by two barsor long plates, K K', the one above the other, with the guideway orpassage between them, and shown as formed by a groove in thelower platecovered bythe upper plate but a half-groove may be made in each plate.The plates are secured by their beveled shanks or heel ends to the topand bottom of the inner tube by screws k,.so as not to offer anyobstruction to the insertion and free travel of the nail-plates. Theupper plate or bar is made in two parts, the outer portion being cutaway or made quite thin at K2, and secured to the lower plate by screws.

7c'. The object ot' dividing this upper plate and cutting it out is torender it somewhat yielding, to cause the upper one of a pair ofAintermittingly operating nailplate-feedingrolls, L L, to bear withsuflcient pressure upon the nail-plate to gripe it for feeding, and yetaccommodate for inequalities in the thickness ot the metal. Obviously,instead of so forming the upper plate, the ordinary spring-bearings oryielding housing might be employed for either or both rolls. Thebearings for the axes of these rolls are mounted, respectively, on theplates K and K'.

At the delivery or outer end of the guideplates there are two clampingslotted plates, k2 k2, between which the nail-plate passes and is heldon the way to the anvil and cutter. The give of these plates facilitatesthe proper presentation of the nail-plate to the anvil, and when a platehas been nearly used up, and its rear end has passed beyond thefeed-rolls, it is presented to the anviluntil nearly or quite allutilized.

An annular block or ring, M, rigidly attached to tbe ends of the platesK K', and

provided with a wiper or cam-projection, m,

IIS

- warhammer works in a guide-frame or forked bracket, M', at the outerend of the supplementary tablet?. The forks of the bracket are slottedfor the cam to mnvein, as the ring-block, which is of greater width thansaid cam, is turned iu the space between the forks and bears againstthem. When the cath is undermost it rides upon the bottom ot' thebracket, and lifts the plates K K', the cylinders, Xe., by tilting themupon the pivot l2. A spring, m', acting upon the rolling,r block or ringM and its cam keeps the said block or its cam down upon the bottom ofthe bracket, as will readily be understootl. This sp1-ing is coiledabout a pin attached at its base to a crosspicce or thllower, mi,Working in the slots ot' the bracket-arms. The spring bears at its lowerend on this follower, to keep it pressed on the rolling block, and attop bears against a crosspiece, m, detachablyfastened to thebracket-arms and provided with a gmde'hole for the pin about which thespring: is secured.

From the above description it will be un-- derstood that as the lever1*" is rocked on its vfnlcrnm g2 by the operation of the pitman l,

and the slide-block (l2 reciprotatted, the oscillating cylinder Il' andparts carried thereby are given a half-turn1 tirst in onedirection andthen in the other, one turn being.: to the rig-ht andthe other to titeleft, or vice versa. As the nail-plate is turned to briner uppermost itsopposite sides, alternately, the wiper orcam m elevates it, raising ithighest when edge down to free it from the anvil, and presentingitilatwise and in the lowest position to be acted on by the cutter. whichmakes the usual diagonal cross-cuts. lt will be seen that neither of thecylinders has any longitudinal rerun-ocation or,endwise movement inaction. The nailplat s are fed along with their adjacent ends abutting,a fresh plate taking the plaeeot' thc one in advance of it as soon ascut np.

Suitable mechanism for feeding,r the plates step by step,the properdistances for sever-ilu,r anail at each eut, through any given plateexcept the waste or end cuts, will now be described.

An end ring, short tube,or cylindricalshell, N, is formed with or tirmlyattached to and projects from the annular shoulder J of the inneroscillating`r cylinder, ll. A drum, X', is lnounted loosely' within orso as to turn independently ofthe shell or ring. This drum is mainlyinside the ring. projectlng: froln it slightly at its outer end, wherethe drum is enlarged by the tlanged annular shoulder n,with in whichenlarged pat t of the drum is mounted tixedly an internally-toothedspur-gear, n; or the spur-teeth may be formed, as shown, directly uponthe inside ot' this tlang'e or annular enlargement of the drum. The drumis mounted or lsupported in the shell by bearing blocks attached byscrews to the shell and tittingin an annular groove in the drum. Aratchet-wheel, U, is loosely nlounted upon a sleeve orinwardly-extending thin portion ot' the drum close to the shoulder J.(See Figs. 8, tl, and 12.) A coiled spring, O', wound over and over, isattached at oneentl to the drumslecve and at the other to a stud, o, onthe ratchet, and occupies a position between the ratchet and the main orthick body part of the drum.

A rocking and yielding or spring pawl, P, for engaging the ratchet, ispivoted tothe outer non-turning shell or main hollow cylinder H, andwhen acting on the ratchet projects at its nose through a slot,p, in theside ofthe ring N.

A springcontrolled rocking pawl, Q, pivotetl on a lug on the shell or onthe shoulder J of the oscillating: cylinder, Works through aslot, q, inthe top ot' the shell, to engage the ratchet wheel. The hollow orcircular openiugthrough the drum is large enough to allow the guideplates K K to turn freely in operation.

The internal toothed gear, u', mesheswith a pinion, lt, fast onthefinuer end of a shaft, having a worm or screw gear, R', upon it, andmeshing with a wornewheel, R2. The worn shaft is shown as mounted inbearingsA r r on the upper guideway-plate, K, through which titenail-plates are fetl. lt; would, however, be preferable to have thesebearings r r secured to aud project upward from the bottom plate, K',thereby avoiding play of the worm-shaft as the upper plate, K, yields.This yield,

thoughr very slight, might possibly interfere n withaccurate wot-kingofthe gearing.

The wormdriven wheel R2 is fastened ott one end of the shaft whichcarries the lower feeding-toll, Il. This shaft turns in proper bearingsin the lower guideway-plate, K', and the roller fast to it projectsthrough a slot in said plate to engage the nail-plates.

The proper amount of feed at each forward movement of the nail-plate isregulated by a stop motion or suitable escapement mechanism, by whichthe operation of the feed-rolls is intermitted. l prefer the mechanismnow to be described.

A ratchet or escape wheel, S, is fixed to the shaft ofthe lower roll, atthe end thereof opposite that to which the worm-Wheel R2 is attached.'lhe pallets or toothed arms t t of a verticallyrocking lever, T, actupon the escapewheel teeth. Adjustable stops U U (shown as formed bysetscrews passing,T up through the supplementary table C) arealternately struck at the propertimes by the opposite end of across-head, V V', of the lever, t0 rock 0n its pivot aml allow the wheelto turn one tooth, which admits of the feeding forward of thenail-plates.

ln operation, as the vibrating lever F is caused to move the slide-blockGr2 and its connections back and forth, and thus give theintermittentand reverse oscillations to the cylimler ll', as before explained, thepoint or nose of the pawl l on the stationary or outer cylinder slides,for a portion of the time consumed during each complete reciprocatiou orto-andfro movement ofthe slideblock, upon the out IOS . side of the ringor shell N. While the pawl P is so working outsidethe shell, th'e pawlQ, having the inotion of the oscillating cylinder, projecting into theyring N through the slot for it, engages the ratchet O, to prevent itsturning or reverse movement. Near the completion ofthe instroke of thelever F', and of the traverse of the slide-block Gr2 toward thereceiving end or mouth J of the cylinder, the nose of the pawl P willenter its slot p, as shown in Fig. 12, engage the ratchet O, and for ashort time, during the finish of the oscillating movement of the innercylinder, will stop the motion of the ratchet, while the inner cylinderand the shell N continue their rotation, thus winding up theratchet-spring, the result of continuing the n iotion of the cylinderH', and the shell after stopping the ratchets motion being equivalent,as affecting the spring, of stopping the oscillatory motion of thelcylinder and shell and causing the pawl to impart rotary motion to theratchet in a direction such as to act upon this spring O' with atendency to wind it up or compress its coils. The coiled thrust-springp'about the shank of the pawl is of adstrengtli great enough to hold thepawl P up to its work against the resistance of the spring O', and yetwill admit of such endwise movement or slight yield of the pawl as isnecessary to prevent straining or breaking the spring. At each time thepawl is acting on the springy the escapewheel S makes one of its partialrevolutions, thus allowing the train of gearing. operated by the springto actuate the feeding-rolls. The opertion of the spring O' upon thefeeding devices takes place, it willbe understood, about the finish ofeach partial turn, or twice for every com plete oscillation or rockin g1n ovem en t, once to the right and once to the left, while the pawl l?acts only once during such time-viz., when the cylinder H' is turned inthat direction which would be toward the left hand viewed from the mouthor receiving end of the apparatus. I tshould here be noticed thatengagement with the moving ratchet-wheel O of the pawl P will preventfurther rotation of this wheel; and the continued rotary motion of theinner cylinder, H', which motion is, of course, imparted to the plates KK', which are secured to thiscylinder, and also imparted to the feedmechanism carried by the plates, will wind up the spring O' as the drumN', to which one end of the spring is attached, has imparted to it thecontinued rotary motion of the inner cylinder by connecting with thefeed mechanism. The tendency of the spring to unwind is resisted inobvious ways by tlle escapement mechanism until the actuation of thismechanisrmwhich results from the contact of one of the arms of the leverT with its stop, as already explained.

y To allow the t pawl P to swing or rock sufciently to enter and leavethe slot in the ring, a spring, p2, passes through a slot in its pivot,between its bearing-lugs on the cylinder, and

acts with a tendency to rock the pawl-nose into its slot. The springyields to allow the pawlnose to ride out and travel upon the ring whennot to engage the ratchet-wheel. The pawl, it should be understood, actsupon the ratchetwheel of spring O' so as to canse the spring to be woundup at each time amply enough for two actuations of the escapementmechanism feeding devices-that is to say, at the time of' everyalternate action of the feed mechanism the spring is wound up tocompensate not onlyfor the unwindingorforce expended then, but also forthe intermediate actions. This automatic winding of the spring enablesthe machine to be kept in operation as long as desirable, and to supplynail-plate after nailplate without stoppage to wind up or set thespring.

When it may be desired to stop the motion of the inner cylinder, H', andthe feed of the nail-plates, the pin or roller h3 of the slideblock Gr2may be thrown into the straight way or groove h2 simply by turning theoscillating cylinder, byhand,`slightly to the left, when this roller hascompleted or is about to finish one of its oscillations to the left.When so turned, the slide-roller will, on the outstroke of the lever andmovement of the block toward the anvil, travel the straight groove andcontinue to reciprocate in it until, by a hand-movement of theoscillating cylinder, the reverse of that to throw out of operation isgiven at the end of au inward stroke of the slide-block.

I claim as of my own invention- 1. The combination of thetable-supporting post, the vertically-adjustable slide-block, thepivoted adjustable plate on the slide-block, and the table secured tosaid pivoted plate, substantially as and for the purpose hereinbeforeset forth.

2. The combination, substantially as hereinbefore set forth, of theslotted table-supporting post, the slide-block adjustable in thepostslot, the rocking plate pivoted to said block, the table, and itsslotted arms adjustably secured to the pivoted plate, for the purposedescribed.

3. The combination of the slotted main table, the supporting-posttherefor, means essentially such as described for adjusting said tablerelatively to its post both vertically and by rocking, and thesupplementary table adjustable transversely of the main table in theslot thereof, substantially as and for the purpose hereinbefore setforth.

4. 'lhe combination, substantially as hereinbefore set forth, of thetable-supporting post, the adjustable slide-block having thedownwardly-projecting arm or shank, the lever for operating thenail-plate-handling mechanism pivoted to said shank, and the pitman forvibrating said lever.

5. The combination, substantially as hereinbefore set forth, of thejointed pitman, the table-supportin g post,the vertically-adj ustableslide-block having the downwardly-projecting IOO IIO

IIS

arm or shank, the adjustable rocking plate pivoted to said slide-block,the table adjustably secured to said pivoted plate, and the vibratinglever for actuating the nail-plate-handling mechanism, pivoted to theslide-block shank and operated by the pitxnan.

6. The combination, substantially as hereiubefore set forth, of thevibrating yoke having the double camway or upper and lower communicatingcam-slots, the pivoted reciprocating wedge-pointed tappet working insaid yoke, with its heel alternately acting against the opposite sidesof the yoke or upper camwalls thereof, and the fixed peaked stud orwedge-block in the lower part of the yoke, between which block and thenarrowed part of the yoke at the junction of' the upper and lowercamways the wedge-point of the tappet Works alternately at oppositesides, for the purpose described.

7. The combination, substantially as hereinbefore set forth, of theeccentric, thejointed connecting-rod, the slotted post by which theconnecting-rod is guided, the pointed tappet pivoted to said rod by astud working in the post-slot, the wedge-block fixed to the post beneaththe pivot ot' the tappet, the double cam-yoke surrounding the tappct andwedgeblock, and the pivoted yoke shank or lever connected with thepitman.

8. The combination ot' the non-turning vertically-vibratingnon-reciprocating casing or outer cylinder having the longitudinal slot,the oscillating non-reciprocating inner cylinder having the sin glestraight way corresponding with the slot in the outer cyliuderand thesingle curved way communicating with said straight way, the reciprocatedstud or roller adapted to work in either of said guideways, andnail-plate-feediug mechanism actuated during the oscillation of theinner cylinder when its curved way is engaged by said stud, and thrownout of' operation when the stud worksin its straight way, substantiallyas and for the purpose hereinbefore set forth.

9. The combination of the non-turning nonreciprocating main or outercylinder, pivoted to vibrate vertically, the oscillatingnon-reciprocating inner cylinder supported in said main cylinder andprovided with the curved guideway, the reciprocating block working in aguideway in the outer cylinder and having a stud or roller working inthe curved way of the inner cylinder, and the vibrating lever providedwith a link or slot for actuating said block and roller, substantially'as and for the purpose hereinbefore set forth.

10. The combination, substantially as hereinbefore set forth, of thenon-reciprocatin g vertically-rocking outer cylinder, the oscillatingcylinder supported therein and having no movement endwise thereof, thegrooved bars secured to and projecting from the inner cylinder andforming the nail-plate passage-way, the rin g-block and its cam securedto the outer end of the nail-plate passage way, and the slotted frame orforked bracket in which said ri n g-block and cam work, for the purposespecified.

11. lhe combination, substantially as hereinbefore set1 forth, of thetransversely-adjustable or supplementary table, the outernon-reciprocating and non turning cylinder pivoted at or near its heelto the table, the inner non-reciprocating oscillating cylinder, and thecam secured to the bars projecting from the oscillating cylinder and inwhich the nail-plate passage-way is formed, for the purpose described.

12. The combination, substantially as hereinbefore set forth,of asupport or table provided at its outer end with the guide-frame orbracket having slotted arms, the non-reciprocating cylinder pivoted ator near its heel end to said support and having no axial or turningmotion, the inner non-reciprocating oscillating cylinder, the ring-blockoscillating in the bracket and between its arms, the cam on said blockworkin g at times in the slots of said arms and at times bearing againstthe bottom of the bracket, bars, or plates, through which thenail-plates are fed, secured to and projectin g from the oscillatingcylinder and having the said ring-block and cam fixed to them, andintermittingly-acting feed-rolls for thrusting forward the nail-platesat each oscillation of the inner cylinder, as described.

13. The combination of the outer cylinder, the inner oscillatingcylinder, the nail-plate passage-way or grooved plates secured to andprojecting from said inner cylinder, the feedrolls, the drum looselymounted at the outer end of' the inner cylinder and within a shell orring attached thereto, the coiled spring secured at one end to saiddrum, the ratchetwheel to which the other end of said spring is secured,the pawl on the outer cylinder working through a slot in thecylinder-ring, at iIltervals, to engage the ratchet-Wheel, gearingconnecting the spring with one of the nailplate feeding-rolls, and theescapement-wheel on the shaft of said roll, substantially as and for thepurpose hereinbefore set forth.

14. The combination, substantially as hereinbefore set forth, of theouter cylinder, the oscillating inner cylinder, the ring or enlargedtube at the end of the inner cylinder, the loose drum, the pinioncarried thereby, the coiled spring, the ratchet-wheel, the pawl on theouter cylinder acting on the ratchet-wheel at every alternateoscillation of the inner cylinder, the pawl carried by the innercylinder and constantly engaging the ratchet-wheel, and gearingconnecting the drum-pinion, and the rolls which feed the nail-plates.

15. The combination, substantially as hereinbet'ore set forth, of theoscillating cylinder, the nail-plate passage-way formed in bars orplates secured thereto, the feeding-rolls, the escape-wheel, thepallet-lever provided with the IOO IIO

cross-head or arms, and the stops for rocking said pinion, and theescapement mechanism= said lever at each turn of the cylinder, for thesubstantially as and for the purpose hereinbepurpose described. fore setforth.

l 16. The combination of the oscillating cyl- In testimony whereof Ihave hereunto sub- 5 der, the ratchet-Wheel loosely mounted Withinscribed my name.

the ring or shell at the end thereof, the drum also loosely mountedWithin said ring, the ELBERT C' TAYLOR' coiled spring secured at itsopposite ends to Witnesses: the ratchet-Wheel and drum, the pinion car-JAMES R. HARRIS, 1o ried by the drum, the feed-roller driven fromCORNELIUS L. HOWARD.

